A friend, indeed.

via phone...
M: Hey, where are you?
R: Walkin' the dog.
M: Ok. I'm at your apartment.
R: Well, I should be home in about 10 minutes.
M: It's cool--the door was open, so I came in and poured myself some coffee and got a snack and used your internet, and then it occured to me that I should call and make sure you weren't abducted.
R: That's great... could you maybe put some laundry in...?